body {
  font-family: system-ui, sans-serif;
  background-color: white;
  color: black;
  padding: 16px;
  width: 220px;
  position: relative;
}

button {
  display: block;
  margin: 10px 0;
  width: 100%;
  padding: 8px;
  font-size: 14px;
  border: none;
  border-radius: 6px;
  background-color: #0084ff;
  color: white;
  cursor: pointer;
}

button:hover {
  background-color: #0070cc;
}

#github-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  width: auto;
  padding: 6px 12px;
  background-color: red;
  font-weight: bold;
}

#github-btn:hover {
  background-color: darkred;
}

@media (prefers-color-scheme: dark) {
  body {
    background-color: #121212;
    color: white;
  }

  button {
    background-color: #005fcc;
  }

  #github-btn {
    background-color: #cc0000;
  }

  #github-btn:hover {
    background-color: #990000;
  }
}
